ExpressionStore.GetExprName
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Use this method to translate the ID of an expression into its corresponding expression name.
Definition
Function GetExprName(nExprID As Long) As String
Parameters
nExprID
[in] A Long that contains a unique expression ID.
Return Values
If this method completes successfully, it returns a String that contains the name of the expression. An empty String is returned if the expression ID is a Long but does not represent an existing expression.
Error Values
This method sets the Number property of the global Err object to S_OK (&H00000000) to indicate success and to either standard or custom COM error values to indicate failure. For more information about standard COM errors, see Standard COM Errors.
The following table shows the custom COM errors that this method can return.
| Constant | Value | Description |
| E_EXPR_BADCONNECTION | &H8110001F | Invalid connection |
| E_EXPR_BADEXPRID | &H8110000A | Invalid expression ID specified, or expression ID not found in store |
| E_EXPR_NOCONNECTIONSTRING | &H8110000D | No connection string specified |
Additional information may be available using the global Err object. In particular, the Description property may contain a text description of the error.
Remarks
Use the GetExprID method to translate the name of an expression into its corresponding expression ID.
Call the Connect method before calling the GerExprName method.
For more information about memory ownership issues related to COM property and method parameters, see Managing COM Parameter Memory.